[feat] add initial database schema with tables, triggers, and views

database/main/trait.sql

@@ -0,0 +1,25 @@
+create table trait
+(
+    id           INTEGER
+        primary key,
+    optolith_key TEXT                    not null
+        unique,
+    name         TEXT                    not null,
+    kind         TEXT                    not null,
+    is_leveled   INTEGER default 0       not null,
+    level_min    INTEGER,
+    level_max    INTEGER,
+    level_step   INTEGER,
+    ap_cost_mode TEXT    default 'FIXED' not null,
+    ap_wert      INTEGER,
+    ap_per_level INTEGER,
+    ap_formula   TEXT,
+    beschreibung TEXT,
+    check (ap_cost_mode IN ('FIXED', 'PER_LEVEL', 'TABLE', 'FORMULA')),
+    check (is_leveled IN (0, 1)),
+    check (kind IN ('VORTEIL', 'NACHTEIL'))
+);
+
+create index idx_trait_kind
+    on trait (kind);
+